干旱区生态环境知识资源中心(Arid): Investigating the Sensitivity of Low-Cost Sensors in Measuring Particle Number Concentrations across Diverse Atmospheric Conditions in Greece and Spain

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DOI	10.3390/s23146541
	Investigating the Sensitivity of Low-Cost Sensors in Measuring Particle Number Concentrations across Diverse Atmospheric Conditions in Greece and Spain
	Kosmopoulos, Georgios; Salamalikis, Vasileios; Wilbert, Stefan; Zarzalejo, Luis F.; Hanrieder, Natalie; Karatzas, Stylianos; Kazantzidis, Andreas
通讯作者	Kosmopoulos, G
来源期刊	SENSORS
EISSN	1424-8220
出版年	2023
卷号	23 期号:14
英文摘要	Low-cost sensors (LCSs) for particulate matter (PM) concentrations have attracted the interest of researchers, supplementing their efforts to quantify PM in higher spatiotemporal resolution. The precision of PM mass concentration measurements from PMS 5003 sensors has been widely documented, though limited information is available regarding their size selectivity and number concentration measurement accuracy. In this work, PMS 5003 sensors, along with a Federal Referral Methods (FRM) sampler (Grimm spectrometer), were deployed across three sites with different atmospheric profiles, an urban (Germanou) and a background (UPat) site in Patras (Greece), and a semi-arid site in Almeria (Spain, PSA). The LCSs particle number concentration measurements were investigated for different size bins. Findings for particles with diameter between 0.3 and 10 & mu;m suggest that particle size significantly affected the LCSs' response. The LCSs could accurately detect number concentrations for particles smaller than 1 & mu;m in the urban (R-2 = 0.9) and background sites (R-2 = 0.92), while a modest correlation was found with the reference instrument in the semi-arid area (R-2 = 0.69). However, their performance was rather poor (R-2 < 0.31) for coarser aerosol fractions at all sites. Moreover, during periods when coarse particles were dominant, i.e., dust events, PMS 5003 sensors were unable to report accurate number distributions (R-2 values < 0.47) and systematically underestimated particle number concentrations. The results indicate that several questions arise concerning the sensors' capabilities to estimate PM2.5 and PM10 concentrations, since their size distribution did not agree with the reference instruments.
英文关键词	particulate matter mass concentration number concentration low-cost sensors sensors' particle-size selectivity
类型	Article
语种	英语
开放获取类型	Green Published, gold, Green Accepted
收录类别	SCI-E
WOS记录号	WOS:001039076500001
WOS关键词	AIR-QUALITY ; LABORATORY EVALUATION ; SOURCE APPORTIONMENT ; FIELD-EVALUATION ; ORGANIC AEROSOL ; DUST ; PURPLEAIR ; AMBIENT ; ORIGIN ; ATHENS
WOS类目	Chemistry, Analytical ; Engineering, Electrical & Electronic ; Instruments & Instrumentation
WOS研究方向	Chemistry ; Engineering ; Instruments & Instrumentation
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/398636
推荐引用方式 GB/T 7714	Kosmopoulos, Georgios,Salamalikis, Vasileios,Wilbert, Stefan,et al. Investigating the Sensitivity of Low-Cost Sensors in Measuring Particle Number Concentrations across Diverse Atmospheric Conditions in Greece and Spain[J],2023,23(14).
APA	Kosmopoulos, Georgios.,Salamalikis, Vasileios.,Wilbert, Stefan.,Zarzalejo, Luis F..,Hanrieder, Natalie.,...&Kazantzidis, Andreas.(2023).Investigating the Sensitivity of Low-Cost Sensors in Measuring Particle Number Concentrations across Diverse Atmospheric Conditions in Greece and Spain.SENSORS,23(14).
MLA	Kosmopoulos, Georgios,et al."Investigating the Sensitivity of Low-Cost Sensors in Measuring Particle Number Concentrations across Diverse Atmospheric Conditions in Greece and Spain".SENSORS 23.14(2023).